424221214212 has 18 divisors (see below), whose sum is σ = 1072336958238. Its totient is φ = 141407071392.

The previous prime is 424221214211. The next prime is 424221214223. The reversal of 424221214212 is 212412122424.

424221214212 is a `hidden beast` number, since 4 + 2 + 422 + 1 + 21 + 4 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 422364810816 + 1856403396 = 649896^2 + 43086^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (424221214211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5891961273 + ... + 5891961344.

Almost surely, 2^424221214212 is an apocalyptic number.

It is an amenable number.

424221214212 is an abundant number, since it is smaller than the sum of its proper divisors (648115744026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424221214212 is a wasteful number, since it uses less digits than its factorization.

424221214212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11783922627 (or 11783922622 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

Adding to 424221214212 its reverse (212412122424), we get a palindrome (636633336636).

The spelling of 424221214212 in words is "four hundred twenty-four billion, two hundred twenty-one million, two hundred fourteen thousand, two hundred twelve".